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Rewrite the function f(x)=-4(x-4)^2+26 in the form f(x)=ax^2+bx+c
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Rewrite the function f(x)=-4(x-4)^2+26 in the form f(x)=ax^2+bx+c

User Matt Good
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1 Answer

6 votes
Answer: -4x^2 + 32x - 38

Step 1.
(x-4) ^2 = x^2 - 8x+ 16

Step 2.
(-4) x^2 - 8x+ 16

-4(x^2-8x+16) = -4x^2 + 32x - 64

Step 3.
-4x^2 + 32x - 64 + 26 = -4x^2 + 32x - 38
User Nuvolari
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